contradiction vs falsity

contradiction and falsity both are nouns.

Word	Noun	Adjective	Verb	Adverb
contradiction	Yes	No	No	No
falsity	Yes	No	No	No

As nouns, falsity is a hypernym of contradiction; that is, falsity is a word with a broader meaning than contradiction:

Other hypernyms of contradiction include falsehood, untruth.

contradiction (noun)	falsity (noun)
the speech act of contradicting someone	a false statement
(logic) a statement that is necessarily false	the state of being false or untrue
opposition between two conflicting forces or ideas